Key holder



FIG. 1 is a front view of a key holder, showing my new design.

FIG. 2 is a left view thereof.

FIG. 3 is a right view thereof.

FIG. 4 is a bottom view thereof.

FIG. 5 is a top view thereof; and,

FIG. 6 is a perspective view thereof. 

CLAIM The ornamental design for a key holder, as shown and described. 